Investigation of the flat disk-shaped LHP with a shared compensation chamber

被引：20
作者：
He, Song [1 ]
Liu, ZhiChun [1 ]
Wang, DongDong [1 ]
Zhao, Jing [1 ]
Liu, Wei [1 ]
Yang, JinGuo [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2016年 / 104卷
基金：
中国国家自然科学基金;
关键词：
Loop heat pipe; Biporous wick; Two heating surfaces; Shared CC; Limited space; LOOP HEAT-PIPE; OPERATIONAL CHARACTERISTICS; BIPOROUS WICKS; TRANSFER PERFORMANCE; EVAPORATOR;
D O I：
10.1016/j.applthermaleng.2016.05.043
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Conventional flat loop heat pipes only possess one active zone, not satisfying the requirements for the special occasions. In this paper, an evaporator with a shared compensation chamber is developed for cooling the compact electronic devices. Its main feature is the compensation chamber shared by two heating surfaces, the shared compensation chamber plays a role in supplying to two wicks when two heating surfaces are heated simultaneously. Under the conditions of the favorable elevation with a slope of 10 in the gravity field and the working fluid inventory with 75%, its startup performance and characteristics of operation with variable heat load have been studied. At two different heat sink temperatures of 0 degrees C and 5 degrees C, the loop could start up successfully at different heat load arrangements. With the evaporator wall temperature below (90 +/- 2) degrees C, the transferred maximum heat load was 240 W. Especially, start-up process with two heating surfaces was improved, and the temperature difference between two heating surfaces was less than 1 degrees C. Otherwise, given the constant total heat load of 160 W, the system demonstrated very fast response to alternative heat load applied to two heating surfaces. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：139 / 145
页数：7
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